Bad EVO...Again!

[99GMC]

I noticed a slight jerking after I put the stock wheels and tires back a few weeks ago. Does this repair take a long time to do?

 

[fyremanpat]

20 minutes tops. the hardest part for me was getting the steering grommet back into place.

 

[steamroller]

well yea thats what I mean. where it goes loose then tightens up. thats from it losing contact..i was referring to the actual pump sensor.

Thats what I was talking about although it's not really a sensor, the only sensor is on the column. EVO= electronic variable orifice

There are some things that don't need electronics involved and 1 of those things is steering

 

[95escahoe]

what years was the evo sensor on, was it on 95's?

 

[fyremanpat]

There are some things that don't need electronics involved and 1 of those things is steering

I couldnt agree more...If I recall they werent on 95's..I wanna say 97 and up

 

[steamroller]

97 or 98 was the first year for it

 

[bebop]

what were the symptoms of your EVO going out? did you have any whining or just "loose" steering? Do you have the part number for the EVO? Also, I tried looking for the evo delete kit using the part number in the thread with no luck. any suggestions for that?

 

[foreverfalcon40]

Why keep it?
Replace the fitting on the pump and hose from an older truck that didn't have it and be done with it. GM also sells a fitting and line adapter that allows you to keep the factory hose if you want. Part #19168825, pic is from fezmomasher on FSC

What year was that hose off of? Can that be had at a parts store or GM?

 

[oldsalt]

I changed mine over when I rebuilt the engine last year to the upgrade that steamroller posted. At that time it was a GM only part. It is a small 'U' shaped pipe that basically eliminates the EVO. No problems since. I was told that this is a GM fix/upgrade.
Sunlitcomet might have a tech bulletin on this.

 

[bebop]

Does that replacement give you the feel of full power steering or is there a heavier feel. I really don't like the light feeling I have now, especially at highway speeds.